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Majority of snowfall reports are public reports....and thus variable.... snow is like rain and not evenly distributed....
Are you sure about that? What do you mean by public report? Here are two Environment Canada reports from yesterday:
Quote:
ONTARIO
AWCN12 CWTO
Updated weather summary for Northern Ontario issued by
Environment Canada at 11:02 A.M. EDT Thursday 11 September 2014.
On Wednesday the 10th of September to Thursday morning a storm swept
through the area bringing significant rainfall across Northeastern
Ontario.
The following is a summary of weather event information received by
Environment Canada as of 11:00 AM Thursday.
Location event description
Kapuskasing Airport 51.4 millimetres of rain
Timmins 76.2 millimetres of rain
Wawa Airport 42.6 millimetres of rain
Lake Superior Park 52.8 millimetres of rain
Kirkland Lake 42.6 millimetres of rain
Earlton 36.8 millimetres of rain
North Bay 46.9 millimetres of rain
Chapleau 62.0 millimetres of rain
Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.
End
Quote:
QUEBEC
AWCN11 CWUL
Weather summary for Western Quebec issued by Environment Canada at
10:09 AM EDT Thursday 11 September 2014.
A low pressure system from the Great Lakes tracked northeastward to
affect Northwestern Quebec. Significant rainfall amounts fell over
several regions since Wednesday evening. Precipitation will taper off
today over areas still in warning.
Here is a summary of the weather event information as received by
Environment Canada.
Why are the Quebec figures given in ranges while the Ontario ones aren't? Seems a bit fishy to me.
ETA: Ah, I see. The Quebec disclaimer says this "does not constitute a final or an official report" while the Ontario one says it "does not constitute a complete or final report."
Why are the Quebec figures given in ranges while the Ontario ones aren't? Seems a bit fishy to me.
ETA: Ah, I see. The Quebec disclaimer says this "does not constitute a final or an official report" while the Ontario one says it "does not constitute a complete or final report."
I don't think that's the reason. The figures are precise for airport observations and provide a range when a larger area or region is being referred to. That's my take anyway.
I don't think that's the reason. The figures are precise for airport observations and provide a range when a larger area or region is being referred to. That's my take anyway.
correct..... Here is what we do at NWS Grand Forks ND
For rainfall we generally do get specific reports via a spotters rain gauge, by rain gauges that the public has, or automated station at the airport. Sometimes even with rainfall ranges are given for a city if spread is large.
For snowfall now...specific amounts to the tenth of an inch or inch is harder to come by. Many reports we get snowfall are more estimated, especially in our area due to wind. Thus we often will report the specific snowfall for a climate station, but many times from the public we get 3-4, or 5-6, etc..... and thus ranges are used.
I am not 100 pct on EC procedures....but they do have more specific rainfall amounts from AWOS stations and others, but snowfall is much harder and thus they use more public reports which are usually not quite as specific.
And none of the rainfall/snowfall data for any climate or observation station is officially until reviewed by in our case the Natl Climate Data Center.
Why are the Quebec figures given in ranges while the Ontario ones aren't? Seems a bit fishy to me.
ETA: Ah, I see. The Quebec disclaimer says this "does not constitute a final or an official report" while the Ontario one says it "does not constitute a complete or final report."
From the Ontario report....they only used Automated Weather Stations and thus used the specific amount recorded from those.
From the Quebec report...a specific amount is given for the automated station at the airport....but ranges are given in other areas due to various public reports within that region.
Notable low temperatures from around Alberta this morning. All figures are based on hourly rounded observations so absolutes could be lower.
Edmonton Int'l -5C
Red Deer -4C
Rocky Mountain House -6C
Nordegg -7C
Sundre -8C
Calgary Olympic Park -5C
Bow Valley -5C
Banff -8C
High River -5C
Pincher Creek -6C
Waterton Park -7C
Hendrickson Creek -10C
Of particular note, Hendrickson Creek had already dropped to -10C by 0200h at which time the station the station conked out. Would be interesting to see how low it actually dropped to.
Notable low temperatures from around Alberta this morning. All figures are based on hourly rounded observations so absolutes could be lower.
Edmonton Int'l -5C
Red Deer -4C
Rocky Mountain House -6C
Nordegg -7C
Sundre -8C
Calgary Olympic Park -5C
Bow Valley -5C
Banff -8C
High River -5C
Pincher Creek -6C
Waterton Park -7C
Hendrickson Creek -10C
Of particular note, Hendrickson Creek had already dropped to -10C by 0200h at which time the station the station conked out. Would be interesting to see how low it actually dropped to.
I guess with a low of 23F in Calgary and Edmonton, your summer flowers are toast. Shame. Flowers are in bloom around here till early November usually.
I guess with a low of 23F in Calgary and Edmonton, your summer flowers are toast. Shame. Flowers are in bloom around here till early November usually.
Springbank, just outside the western suburbs of Calgary, bottomed out at -9 C (16 F) this morning. Again, those are hourly observations so it's possible it was even lower than that. As of 13:00 MDT, it was still sitting at -2C with bright sunshine: more typical of a midwinter day in the Mid-Atlantic States!
This just makes me hope for a cold snowy winter here in Sweden . The coldest temperature today was -1.2C
It's great I'm back in my home town for 3 years, much more reliable snow here
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. The coldest temperature today was -1.2C
